Convoy L21A SST40 CW 2300lm In-depth review, Pros and Cons

Luminus SST40 CW LED
2300 lm output
129600 cd intensity
1 x 21700 Li-Ion battery

The Convoy L21A SST40 CW (L21ASST40CW) released in 2019. It uses Luminus SST40 CW LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2300 lm output, 129600 cd intensity, and a beam distance of 720 m.

The L21A SST40 CW flashlight is an essential tools for emergency preparedness. In disasters or blackouts, when electricity is unavailable, a flashlight is crucial. It helps you navigate dark areas. This light has 4 modes of lighting. The memory function is a nice feature, the light will remember the last used mode.

Convoy L21A SST40 CW (L21ASST40CW) pictures

Convoy L21A SST40 CW / L21ASST40CW photo 1.
Convoy L21A SST40 CW / L21ASST40CW photo 2.
Convoy L21A SST40 CW / L21ASST40CW photo 3.
Convoy L21A SST40 CW / L21ASST40CW photo 4.
Convoy L21A SST40 CW / L21ASST40CW

We base the specifications below on the official data published by the manufacturer, while also considering user reviews. If you found an error or something lacking in the specifications for the Convoy L21A SST40 CW, then tell us.

Convoy L21A SST40 CW (L21ASST40CW) specifications

NameL21A SST40 CW
Rated 4 / 5 based on 1392 user votes.

The L21A SST40 CW flashlight enhances safety. It illuminates hazards and improves visibility in low light.


Weight360 g
Length169 mm
Head diameter64.5 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 360 g flashlight might feel relatively heavy if held in hand. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. The aluminium body of the L21A SST40 CW has a reputation for being durable and strong. It offers excellent resistance to impacts, scratches, and corrosion. The HAIII process makes a hard and wear-resistant surface on the aluminum. This makes it more resistant to scratches, abrasions, and impacts. The L21A SST40 CW flashlight is available in black.


EmitterLuminus SST40 CW LED
Color temperature6500 K
LensAR coated glass
Switchmechanical rear, forward clicky

Luminus is a US-based LED manufacturer. In the lighting industry, it has gained recognition as reputable. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. The L21A SST40 CW has a smooth reflector. The right reflector focuses light well. It gives you a better hotspot, and it throws better. The coating is thin and applied to the lens surface. It cuts reflections and boosts light transmission.

The L21A SST40 CW flashlight has multiple switch options. They can be useful, adding versatility and convenience to using the flashlight. Mechanical switches are usually robust. They resist wear and tear and work in many environments. The rear switch allows for quick and easy momentary or constant-on activation. It enables rapid response and tactical moves.


Flux2300 lm
Intensity129600 cd
Throw720 m
CD/LM factor56.35

With 2300 lm, the L21A SST40 CW flashlight will offer a brighter and more powerful beam of light. 129600 cd represents an extremely high level of brightness for a flashlight. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.


Modes4 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again.


Battery1 x 21700 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes

The Convoy L21A SST40 CW flashlight is powered by 1 x 21700 Li-Ion battery. The L21A SST40 CW cannot charge batteries. You may need an external charger to keep your battery going. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge, so it doesn't need protected cells. The built-in thermal control adjusts brightness output to prevent overheating. The "8" in the IPx8 rating means the highest level of protection. It is against water ingress.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the Convoy L21A SST40 CW flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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